Structure of the proximal anastomosis flow in stationary mode at moderate Reynolds numbers

Results of an experimental study and direct numerical simulation of the steady flow in a channel branching region modeling the proximal anastomosis of femoral artery are reported. The Reynolds number was Re = 1500, which value corresponded to the maximum blood flow during the period of heart contrac...

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Bibliographic Details
Published in:Thermophysics and aeromechanics 2022-11, Vol.29 (6), p.905-911
Main Authors: Molochnikov, V. M., Mikheev, A. N., Mazo, A. B., Kalinin, E. I., Klyuev, M. A., Pashkova, N. D.
Format: Article
Language:English
Subjects:
Blood flow
Direct numerical simulation
Flow separation
Flow velocity
Fluid flow
Liquid flow
Mathematical models
Physics
Physics and Astronomy
Reynolds number
Secondary flow
Steady flow
Thermodynamics
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Summary:Results of an experimental study and direct numerical simulation of the steady flow in a channel branching region modeling the proximal anastomosis of femoral artery are reported. The Reynolds number was Re = 1500, which value corresponded to the maximum blood flow during the period of heart contractions. The ratio of the rates of the liquid flows through the branch and main channel was a varied parameter. Regularities in the development of the flow structure in the main channel and in the branch region are revealed, with much attention having been paid to flow separation regions. The occurrence of secondary flows localized within the separation regions has been established. The ranges of the flow rate ratio at which flow turbulence signs appear in the mixing layer at the interface between these regions are identified.
ISSN:1531-8699
0869-8643
1531-8699
DOI:10.1134/S0869864322060105